--查看被锁的表 select b.owner, b.object_name, a.session_id, a.locked_mode from v$locked_object a, dba_objects b where b.object_id = a.object_id; --查看那个用户那个进程照成死锁 select b.username, b.sid, b.serial#, logon_time from v$locked_object a, v$session b where a.session_id = b.sid order by b.logon_time; --查看连接的进程 SELECT sid, serial#, username, osuser FROM v$session; --3.查出锁定表的sid, serial#,os_user_name, machine_name, terminal,锁的type,mode SELECT s.sid, s.serial#, s.username, s.schemaname, s.osuser, s.process, s.machine, s.terminal, s.logon_time, l.type FROM v$session s, v$lock l WHERE s.sid = l.sid AND s.username IS NOT NULL ORDER BY sid; 这个语句将查找到数据库中所有的DML语句产生的锁,还可以发现, 任何DML语句其实产生了两个锁,一个是表锁,一个是行锁。 SELECT l.session_id sid, s.serial#, l.locked_mode, l.oracle_username, l.os_user_name, s.machine, s.terminal, o.object_name, s.logon_time FROM v$locked_object l, all_objects o, v$session s WHERE l.object_id = o.object_id AND l.session_id = s.sid ORDER BY sid, s.serial#;s --杀掉进程 sid,serial# alter system kill session '210,11562';